Share Email Print
cover

Proceedings Paper

A motion compensated fiber optic confocal microscope based on common-path optical coherent tomography distance sensor
Author(s): Yong Huang; Kang Zhang; Ching Lin; Jin U. Kang
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A motion compensated fiber optic confocal microscope system is demonstrated using a combination of a Fourier domain common-path optical coherence tomography (CP-OCT) distance sensor and a high-speed linear motor. The confocal microscope is based on 460 micron diameter fiber bundle terminated with a gradient index (GRIN) lens. Using the peak detection of a 1-D A-scan data of CP-OCT, the distance deviation from the focal plane could be monitored in real-time. When the distance deviation surpasses a certain threshold, the linear motor drives the confocal microscope probe at a speed related to the change in the deviation to maintain the deviation within a predetermined limit. The motion compensation was achieved for a confocal microscope imaging rate of 1Hz with an average distance error of 4 microns.

Paper Details

Date Published: 16 February 2011
PDF: 8 pages
Proc. SPIE 7894, Optical Fibers, Sensors, and Devices for Biomedical Diagnostics and Treatment XI, 789408 (16 February 2011); doi: 10.1117/12.873917
Show Author Affiliations
Yong Huang, The Johns Hopkins Univ. (United States)
Kang Zhang, The Johns Hopkins Univ. (United States)
Ching Lin, The Johns Hopkins Univ. (United States)
Jin U. Kang, The Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 7894:
Optical Fibers, Sensors, and Devices for Biomedical Diagnostics and Treatment XI
Israel Gannot, Editor(s)

© SPIE. Terms of Use
Back to Top